In the biennial <a href="http://inhabitat.com/solar-decathlon/">Solar Decathlon</a> house design competition, the sun's energy takes center stage, but this year the <a href="http://www.umd.edu/" target="_blank">University of Maryland</a> team created a house that also highlights our water usage – a characteristic that has no doubt helped the team jump to first place in the <a href="http://inhabitat.com/solar-decathlon/">esteemed design-build competition</a> put on by the <a href="http://energy.gov/">US Department of Energy</a>. Nineteen eco-friendly prefab houses are currently competing on the National Mall in the <a href="http://www.solardecathlon.gov/" target="_blank">2011 Solar Decathlon</a>, and Maryland’s <a href="http://2011.solarteam.org/" target="_blank">WaterShed</a> house has led the pack through the first week, as judges awarded points in a variety of categories. Just yesterday, WaterShed took first place in Architecture! <a href="http://2011.solarteam.org/" target="_blank">WaterShed</a> was inspired by the <a href="http://inhabitat.com/chesapeake-bay-foundation-headquarters-greenest-building-ever/" target="_blank">Chesapeake Bay</a> ecosystem and focuses heavily on managing storm water, treating greywater and minimizing water usage. Constructed wetlands around the house and the inclusion of a green roof further help to increase energy efficiency and manage water runoff. We’re excited to see that the beautiful and thoughtfully designed <a href="http://www.solardecathlon.gov/scores_teams_maryland.html">WaterShed</a> is on the road to win!

1

2011 Solar Decathlon- Team Maryland

Before entering the house, the native <a href="http://2011.solarteam.org/design/living-systems/landscape" target="_blank">landscaping</a> and natural siding stand out. <a href="http://www.umd.edu/" target="_blank">Maryland</a> students made a conscious effort to source plants that could survive with little extra care while remaining local.

2

2011 Solar Decathlon- Maryland

<a href="http://inhabitat.com/watershed-university-of-marylands-solar-decathlon-home-gives-more-than-it-takes/" target="_blank">The house</a> is designed to emphasize various connections and cycles. The butterfly roof helps direct rainwater into the constructed wetlands located along the entrance to the house.

3

2011 Solar Decathlon- Maryland's WaterShed

The two modules that made up either “wing” of the butterfly are connected by a third, smaller module where the bathroom is located.

4

2011 Solar Decathlon- Maryland

The bathroom has large windows on either side which has the effect to make residents feel they are in an outdoor environment.

5

2011 Solar Decathlon- Maryland's WaterShed

The visual emphasis offers a subtle reminder about water usage and how it directly affects the surrounding environment.

6

2011 Solar Decathlon- Maryland's WaterShed

Greywater, that is water that comes from the shower, clothes washer or dishwasher, is recycled by the wetlands.

7

2011 Solar Decathlon- Maryland's WaterShed Patio

In seven days, microbes are able to filter out nutrients and the water can be re-used for irrigation or other non-potable needs.

8

2011 Solar Decathlon- Maryland WaterShed

The other <a href="http://2011.solarteam.org/design/architecture" target="_blank">two “wings” of WaterShed</a> provide private and social areas which are partitioned by the smaller, bathroom module making for a comfortable work and <a href="http://2011.solarteam.org/design/living-systems" target="_blank">living environment</a>.

9

2011 Solar Decathlon- Maryland WaterShed

The more private living quarters serve two functions thanks in part to well-designed convertible furniture. A working table transforms into a bed at night and several tables fit nicely under one another or can be re-arranged depending on how much workspace is needed.

10

2011 Solar Decathlon- Maryland WaterShed interior

The 900 square foot home is open and spacious, with an abundance of natural light. The kitchen also boasts custom built furniture that helps maximize the use of space.

11

2011 Solar Decathlon- Maryland's WaterShed

Several tables fit nicely under one another or can be re-arranged depending on how much workspace is needed.

12

2011 Solar Decathlon- Maryland WaterShed

In the kitchen, non-wheeled tables fit snugly over tables on wheels which also have storage space for the stools underneath.

13

2011 Solar Decathlon- Maryland WaterShed kitchen

The kitchen is divided from the living space by the "hyphenated" bathroom module. Energy efficient Miele appliances, such as the dishwasher and stove are not only resourceful but also fit in well with the modern, sleek design of the kitchen.

14

2011 Solar Decathlon- Maryland WaterShed

A patent-pending <a href="http://www.umd.edu/" target="_blank">University of Maryland</a> student design, the liquid desiccant waterfall is arranged into the wall and helps provide high-efficiency humidity control. The dark wood framing the design is made of locally-sourced oak.

15

2011 Solar Decathlon- Maryland's WaterShed

Abundant deck <a href="http://2011.solarteam.org/design/architecture/spaces" target="_blank">space</a> located directly off the kitchen offers additional space where residents are encouraged to interact with nature.

16

2011 Solar Decathlon- Maryland WaterShed

The team included a compost bin on the deck that is easily accessible from the kitchen. An <a href="http://2011.solarteam.org/design/living-systems/edible-garden-and-composting" target="_blank">edible garden</a> is planted just off the deck and also up a vertical wall making it easy for residents to use the compost in their garden and harvest produce from the garden each day for use in the kitchen.

17

2011 Solar Decathlon- Maryland's WaterShed

Further harvesting the sun's natural energy, the <a href="http://2011.solarteam.org/" target="_blank">WaterShed</a> solar thermal panel on the back side of the house comprises 60 evacuated glass tubes that use solar energy to heat water for domestic use. The 9.2 kilowatt photovoltaic panels on the roof also provide energy for the home.

18

2011 Solar Decathlon- Maryland WaterShed interior

Residents can access the porch from almost every room.

19

2011 Solar Decathlon- Maryland's WaterShed

Sleek designs are found throughout the house creating a harmony between efficiency, modernity and simplicity.

20

2011 Solar Decathlon- Maryland's WaterShed

Pipes help direct storm water from the roof into cisterns were it can be retained and used for irrigation purposes.

21

2011 Solar Decathlon- Team Maryland

<a href="http://www.umd.edu/" target="_blank">Maryland</a> students intend for the highly efficient house to be suitable for young, working couples in the Baltimore and Washington D.C. areas.

22

2011 Solar Decathlon- Maryland's WaterShed

While the upfront investment is slightly higher than other housing options, the long-term benefits of its efficiency combined with the increasing cost of utilities make the design a good option.

23

2011 Solar Decathlon- Maryland's WaterShed map

A map of watersheds across the United States

24

Maryland Solar Decathlon 2011 Construction Drawings

Maryland's architectural plan for the U.S. Department of Energy Solar Decathlon 2011.

25

Maryland Solar Decathlon 2011 Construction Drawings

Building cross section drawing done by University of Maryland students for the U.S. Department of Energy Solar Decathlon 2011.

26

Maryland Solar Decathlon 2011 Construction Drawings

Maryland's landscape plan for the U.S. Department of Energy Solar Decathlon 2011.

27

1/27

2011 Solar Decathlon- Maryland WaterShed porch

In the biennial Solar Decathlon house design competition, the sun's energy takes center stage, but this year the University of Maryland team created a house that also highlights our water usage – a characteristic that has no doubt helped the team jump to first place in the esteemed design-build competition put on by the US Department of Energy. Nineteen eco-friendly prefab houses are currently competing on the National Mall in the 2011 Solar Decathlon, and Maryland’s WaterShed house has led the pack through the first week, as judges awarded points in a variety of categories. Just yesterday, WaterShed took first place in Architecture! WaterShed was inspired by the Chesapeake Bay ecosystem and focuses heavily on managing storm water, treating greywater and minimizing water usage. Constructed wetlands around the house and the inclusion of a green roof further help to increase energy efficiency and manage water runoff. We’re excited to see that the beautiful and thoughtfully designed WaterShed is on the road to win!